我编写了许多Azure函数(Http,ServiceBus,EventHub和CosmosDB触发器) . 对于应用程序日志记录,我已经实现了自己的Logger类,它创建 TelemetryClient 对象以在Application Insight中接收日志 .
我可以在Application Insight中看到我的所有跟踪,异常和异常日志但是如果没有 OperationName 和 OperationId 我无法关联
现在我手动调用TelemetryClient StartOperation 和 StopOperation 来创建OperationId .
AzureFunction
[FunctionName("AlertEventStoreFunction")]
public static async Task Run([EventHubTrigger("%AlertEventHub%", Connection = "AlertEventHubConnection", ConsumerGroup = "cg1")]EventData eventMessage,
[Inject]IEventService eventService, [Inject]ILog log)
{
log.StartOperation("AlertEventStoreFunction");
try
{
log.Info($"Event PartitionKey {eventMessage.PartitionKey}, Offset {eventMessage.Offset} and SequenceNumber {eventMessage.SequenceNumber}");
string message = Encoding.UTF8.GetString(eventMessage.GetBytes());
log.Verbose(message);
await eventService.SaveAlertEventAsync(message);
}
catch (Exception ex)
{
log.Error(ex.Message, ex);
}
finally
{
log.StopOperation();
}
}
Logger 类
public class Log : ILog
{
private static TelemetryClient telemetryClient = new TelemetryClient() { InstrumentationKey = ConfigurationManager.AppSettings["InstrumentationKey"] };
private IOperationHolder<RequestTelemetry> operation;
private bool status = true;
public TelemetryClient TelemetryClient
{
get
{
return telemetryClient;
}
}
/// <summary>
/// This method will start new session for particular request, we can correlate each log by Operation_Id
/// </summary>
/// <param name="functionName">function name</param>
public void StartOperation(string functionName)
{
RequestTelemetry requestTelemetry = new RequestTelemetry { Name = functionName };
this.operation = telemetryClient.StartOperation(requestTelemetry);
telemetryClient.TrackTrace($"{functionName} trigger");
}
/// <summary>
/// this method will close session
/// </summary>
public void StopOperation()
{
telemetryClient.StopOperation(this.operation);
this.operation.Telemetry.Success = status;
}
public void Error(string message, Exception ex = null)
{
telemetryClient.TrackTrace(message, SeverityLevel.Error);
if (ex != null)
telemetryClient.TrackException(ex);
status = false;
}
public void Info(string message)
{
telemetryClient.TrackTrace(message, SeverityLevel.Information);
}
public void Verbose(string message)
{
telemetryClient.TrackTrace(message, SeverityLevel.Verbose);
}
public void Warning(string message)
{
telemetryClient.TrackTrace(message, SeverityLevel.Warning);
}
}
我不想在每个函数中放置try-catch块,所以我使用postharp创建了Aspect(AOP),它按预期工作,但免费版只允许10个函数 .
我没有看到任何其他好的替代postharp(尝试过sprint.net,Cauldron.Interception等)
而不是这段代码,我可以做些什么来创建相关性(OperationId)?
1 回答
我得到Postsharp备用“MrAdvice”,新版本没有任何依赖
仍然可以提供更好的建议 .